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Vaseline around the bottom edge of the filling part. Rub vaseline around the edge before you put it back in the case and then fill in the gap between the case and the lighter with the excess that pushes up. That'll create a more air-tight seal and your lighter fluid will last ~2 weeks.

And it wouldn't even be an issue with a cheapo Bic lighter. If the consumer pays extra for a Zippo, they should get quality, not inconvenience. At the moment, all Zippo has going for it is that it looks cool-ish.

I only own a small Zippo, and from what I've read online, the small ones leak like crazy, while the full sized ones don't. Completely soaked, mine has fuel for 3 days, regardless of whether or not I use it.

The gas burns off the wick, so it doesn't get short for a really long time (and even then only because you used it too often when the gas was low). But yes, you can pull it up if the wick does get short, watch out though! you might need needle-nose pliers. The wick only needs to be about 2mm long for a decent sized flame. :)

Hope this helped.

Source: my grandfather taught me how to use a zippo one of the last times he and I were able to hang out together when I was 11, it really stuck with me and I like passing the info on, helps me remember him.

Any lighter that uses Butane won't impart flavor. Most smokers use torches made by Xikar or something similar. Other Butane lighters of note are the classic Bic and the Ronson Jetlite you'll see at Wal-Mart.

You can also use matches of any variety (usually the long ones) just let the match head burn before you toast your cigar.

If you're dead set on zippos though you can buy torch inserts for them that work very well in the cigar world.

You can also light with "Cedar Spills" which are literally just strips of Spanish Cedar.

The spring has a solid metal cylinder on one and and a screw bottom on the other. You place a piece of flint into the hallow cylinder the spring goes into and then place the spring back into hallow cylinder. The spring pushes the solid metal cylinder up against the wheel and lets your spark.

It's gas when it's released to be burned. But it's a liquid under pretty high pressure; if you puncture the lighter it will explode from the pressure. As opposed to the completely different situation of a zippo being basically a sponge soaked in fuel with a wick, and it's open to the air.